package com.huike.web.controller.common;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import com.huike.clues.service.ISysFileService;
import com.huike.common.config.HuiKeConfig;
import com.huike.common.constant.Constants;
import com.huike.common.core.controller.BaseController;
import com.huike.common.core.domain.AjaxResult;
import com.huike.common.utils.StringUtils;
import com.huike.common.utils.file.FileUtils;

/**
 * 通用请求处理
 */
@RestController
public class CommonController extends BaseController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ISysFileService fileService;


    /**
     * 通用上传请求
     */
    @PostMapping("/common/upload")
    public AjaxResult uploadFile(MultipartFile file){
        try{
            // 上传文件路径
            return fileService.upload(file);
        }catch (Exception e){
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 通用下载请求
     */
    @GetMapping("/common/download")
    public void fileDownload(String fileName, HttpServletResponse response, HttpServletRequest request){
        try{
            if (!FileUtils.isValidFilename(fileName)){
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = "clues.xlsx";
            String filePath = HuiKeConfig.getDownloadPath() + fileName;
            response.setCharacterEncoding("utf-8");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            response.setHeader("Content-Disposition", "attachment;filename=" + FileUtils.setFileDownloadHeader(request, realFileName));
            FileUtils.writeBytes(filePath, response.getOutputStream());
        }catch (Exception e){
            log.error("下载文件失败", e);
        }
    }
}